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Finding the Fourth Proportional to 433.46, 649.63 and 250.76

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Solution

The fourth proportional to 433.46, 649.63 and 250.76 is: 375.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.46 : 649.63 = 250.76 : x
  2. Step 2: Convert to fraction form
    433.46/649.63 = 250.76/x
  3. Step 3: Cross multiply
    433.46x = 649.63 × 250.76
  4. Step 4: Simplify right side
    433.46x = 162,901.22
  5. Step 5: Solve for x
    x = 162,901.22/433.46
  6. Step 6: Final answer
    x = 375.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.